Abigail has a margin brokerage account. During the year, Abigail purchased on margin 500 shares of DEF common stock at $35 per share. The current margin requirement is 55%, but the broker that Abigail uses has a 60% margin requirement. If the current price of DEF stock is $20 per share and the maintenance margin requirement is 40%, how much money must Abigail commit due to the margin call?

$500

$1,000

$1,875

$7,500